BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Ledyard National Bank's Holding History (CIK: 0001310658)

Note: Option positions (PUT/CALL) are excluded.

Q4 2018

Shares 8,738 Value ($000) $2,629 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 8,067 Value ($000) $2,850 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 8,078 Value ($000) $2,345 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 8,046 Value ($000) $2,203 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 7,723 Value ($000) $2,460 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 7,985 Value ($000) $2,500 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 7,856 Value ($000) $2,132 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 7,564 Value ($000) $2,068 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 7,832 Value ($000) $2,221 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 9,318 Value ($000) $2,917 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 9,500 Value ($000) $2,297 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 9,812 Value ($000) $2,554 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 9,750 Value ($000) $2,987 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 11,178 Value ($000) $3,262 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 451 Value ($000) $183 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 442 Value ($000) $187 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 442 Value ($000) $150 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 442 Value ($000) $146 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 442 Value ($000) $139 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 542 Value ($000) $166 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 542 Value ($000) $152 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 500 Value ($000) $120 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 500 Value ($000) $108 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	8,738	$2,629	$319.14	$278.46 - $358.41
Q3 2018	8,067	$2,850	$344.30	$288.13 - $388.67
Q2 2018	8,078	$2,345	$281.15	$249.17 - $310.91
Q1 2018	8,046	$2,203	$310.41	$259.76 - $370.57
Q4 2017	7,723	$2,460	$320.80	$301.81 - $348.84
Q3 2017	7,985	$2,500	$296.11	$269.50 - $330.00
Q2 2017	7,856	$2,132	$264.42	$244.28 - $291.90
Q1 2017	7,564	$2,068	$282.75	$260.50 - $301.42
Q4 2016	7,832	$2,221	$296.43	$268.00 - $329.83
Q3 2016	9,318	$2,917	$296.18	$240.07 - $333.65
Q2 2016	9,500	$2,297	$263.54	$223.02 - $292.69
Q1 2016	9,812	$2,554	$264.15	$242.07 - $301.02
Q4 2015	9,750	$2,987	$287.35	$254.00 - $311.65
Q3 2015	11,178	$3,262	$330.23	$265.00 - $412.24
Q2 2015	451	$183	$401.33	$368.88 - $432.88
Q1 2015	442	$187	$394.14	$334.40 - $480.18
Q4 2014	442	$150	$323.51	$290.85 - $361.93
Q3 2014	442	$146	$329.72	$298.31 - $349.00
Q2 2014	442	$139	$300.97	$272.02 - $322.25
Q1 2014	542	$166	$317.43	$270.62 - $358.89
Q4 2013	542	$152	$258.65	$221.07 - $298.82
Q3 2013	500	$120	$223.81	$203.55 - $248.95
Q2 2013	500	$108	$213.68	$191.80 - $242.64